html-el:select

I am using the following code to generate a dropdown wherein the selected value will be in the form variable selectedReason. I am presetting this form variable in my action class. I see that the dropdown is displayed with the preset reason automatically and disabled as expected. But by the time control reaches the method 'shopCart' in my action class, the form variable selectedReason is coming in as null. Can someone please tell me why this form variable is not getting set.